Swollen gums usually happen because the gum tissue becomes inflamed. That inflammation can develop from plaque buildup, trapped food particles, overly aggressive brushing, hormonal changes, or early gum disease such as gingivitis. According to the Centers for Disease Control and Prevention, gingivitis is common, largely preventable, and often reversible with good oral hygiene and early care. This guide explains what commonly causes gum swelling, how to reduce gum swelling quickly, what to avoid, and when symptoms may point to something
